Regensburg 2010 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 36: Poster: Nanoparticles and Composite Materials
CPP 36.2: Poster
Mittwoch, 24. März 2010, 17:30–19:00, Poster B2
Conformation and Dynamics of Poly-ethylene-propylene in polymer-silica nano composites — •Klaus Nusser1,2, Susanne Neueder1,2, Gerald Johannes Schneider2, Wim Pyckhout-Hintzen1, Lutz Willner1, Aurel Radulescu2, Vitaly Pipich2, Olaf Holderer2, Peter Falus3, and Dieter Richter1 — 1IFF, Forschungszentrum Jülich GmbH, 52425 Jülich — 2Jülich Centre for Neutron Science at FRM2, 85747 Garching — 3IN 15, Institute Laue Langevin, 38000 Grenoble
Elastomer filler nano composites are widely used in everyday life. Especially the reinforcement of mechanical properties has been applied for a long time in rubber products. The microscopic mechanisms underlying the macroscopic property changes, however, have not been experimentally clarified yet.
We chose a bottom-up approach to gain more microscopic insight into these mechanisms, starting with a simple model system. The polymer component of the composite material was chosen to be polyethylene-propylene, the filler component silica.
Samples with different volume percent silica in the polymer matrix were investigated by means of Small Angle Neutron Scattering, yielding first insight into the microscopic structure of the polymer chains in the presence of the filler particles. The segmental dynamics was probed by means of Neutron Spin Echo spectroscopy.